Enhancing Privacy in Public Spaces Through Crossmodal Displays

  • Authors:
  • Han Cao;Patrick Olivier;Daniel Jackson

  • Affiliations:
  • Newcastle Upon Tyne University, Newcastle, UK;Newcastle Upon Tyne University, Newcastle, UK;Newcastle Upon Tyne University, Newcastle, UK

  • Venue:
  • Social Science Computer Review
  • Year:
  • 2008

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Abstract

The authors introduce the notion of a crossmodal display as aproposal for enhancing the privacy of public information displays.The selection of appropriate display technology and interactiontechniques relies on an understanding of the public-private natureof information and the spaces from which it is accessed. Thecrossmodal display framework supports multiple users simultaneouslyaccessing information that contains public and personal elements.Crossmodal displays are multiuser interfaces that facilitate theefficient public access of personalized information, whilemaintaining the anonymity of each user in physical public spaces.Based on psychological theories of crossmodal attention thatcharacterize human capabilities for matching information receivedthrough different modalities, the framework takes advantage ofpublic displays and mobile devices through the use of peripheralcues and allows information personalization in public space. Twoexample systems are presented, in the first individuals accesssituated ambient displays of directions to destinations, and in thesecond a structured combination of cues is used to provide accessto information board displays. The configuration and implicationsfor privacy of both systems is introduced and analyzed within thewider context of access to public information displays in pervasivecomputing.